External wall insulation practices should be steadily promoted

The company's engineering supervision industry in the UK-based Tsui Wah Swill has three self-regulatory projects. Supervision and construction projects The corporate responsibility system, bidding system, and contract management system together form the basic system of China's engineering project management. The implementation of the engineering supervision system will control the project quality. Investment and progress have played an important role. The implementation of the project supervision system has further promoted the improvement of China's engineering construction management system. The China Construction Supervision Association should give full play to the social functions of industry associations, improve the industry's self-discipline and integrity, and serve the development of the industry.

The construction supervision industry has made positive contributions to the development of China’s engineering construction. However, disorderly market competition, unregulated behaviors of owners, and depressive prices of the owners continue to plague the development of the industry, resulting in supervision fees that are significantly lower than the reasonable costs of supervision. The supervision enterprises cannot attract high-quality talents, the overall quality of the supervision team is significantly reduced, and the supervision work cannot play an effective role.

The engineering supervision industry must achieve three self-discipline. The first is the self-discipline of service quality, and the provision of engineering supervision services in accordance with national laws, regulations, standards, norms and contractual agreements; the second is the self-discipline of professional ethics and the performance of strict performance of the contract does not impair the project. Construction of the interests of all parties; third is the self-discipline of service prices, strict compliance with the industry price standards set by the state, resisting acts of malicious pricing, and consciously maintaining the order of the industry.

The Ministry of Construction and the National Development and Reform Commission formally approved the fees for construction project management and related services, and issued new standards for project supervision fees. The bottleneck problem that has plagued the industry for many years has been solved. The bottleneck that has hindered the healthy development of the engineering supervision industry has been solved. It is hoped that the company will implement this fee standard, and it cannot allow the new fee standard to be greatly reduced under the competitive pricing of the company.

Excerpt from the speech made by Wang Suqing, Director of Construction Market Management Department of the Ministry of Construction, at the fourth member congress of the China Construction Supervision Association, the practice of external thermal insulation of external walls should steadily promote the current practice of compulsory promotion of energy-saving housing throughout the country. The relevant experts pointed out with concern : You can't just mention slogans, send documents, and pressure indicators, but you should face reality, study problems, solve difficulties, focus on the future, and steadily advance. Otherwise, the external insulation of external walls will be forced to be promoted in newly-built houses, regardless of region or region, and the consequences will be disastrous.

Residential energy conservation is a national policy, but good things must be done. Recently, the reporter interviewed quite a number of experts from the municipal or district construction commissions, real estate bureaus, quality supervision stations, and research institutes, including some developers. They are saving energy from their homes and are likely to have large-scale quality problems in the future. They hope that the energy saving of residential buildings can be steadily promoted. The first condition is that quality must be ensured.

At present, the external wall insulation is divided into internal insulation, sandwich: middle) insulation, and external insulation. Among them, exterior insulation is the practice recommended by the relevant departments and commonly used. However, many developers are still worried about this: what kind of materials are used, what is the life expectancy, and who will bear the responsibility for quality problems? Question 1: How to ensure the quality of relevant experts believe that due to the use of external thermal insulation Lightweight building materials, located on the surface of the wall, are constantly affected by various climate factors such as temperature, humidity, and solar radiation in the atmosphere. They can cause shrinkage, creep, and aging. As time passes, the surface is prone to cracks. Once the cracks occur, the rain will infiltrate into the area and spread over large areas. Although the reasons for the cracks are various, including design, materials, and construction, if the materials are qualified and appropriate, but the construction is not strictly conducted, problems will occur. According to experts, in the past few years, pilot projects of external wall insulation have begun, and some have already experienced cracking seepage and other quality problems to varying degrees, causing complaints from residents. The reporter saw at the Shanghai Real Estate Science Research Institute that when they tested some exterior-insulated exterior-insulated homes, photographs taken through infrared instruments showed that some exterior insulation materials had multiple cracks and other hidden troubles in the inner layer. Will gradually spread, eventually leading to insulation failure or even peeling cracking seepage. In this regard, a long-term expert in the quality supervision station said that after a few years, these exterior wall thermal insulation residential buildings are likely to become the focus of quality complaints.

Question 2: How long is the life span? In the past few years, some manufacturers have launched thermal insulation materials, get a certificate, and engage in an identification. It is understood that a considerable part of the external insulation materials outside the wall has not reached the national standard. As this type of product has just started in the country, how long life expectancy does not have to be proved by practice. What kind of insulation material is used for the first time will involve major problems in the future housing life. Developers hope that the relevant government departments will recommend hard-boiled products. However, due to the fact that the relevant government departments do not assume the functions of the recommended products according to the usual practice, the developers are caught in a dilemma. Take Shanghai as an example. Although the Shanghai Building Materials Industry Association has successively recommended 79 manufacturers of insulation materials, developers still have doubts about this. Because after the selection, if there is a problem in the future, the association will not assume any responsibility. According to an authoritative source of a manufacturer, frankly, the temperature difference between the inside and outside of the insulation layer can easily lead to deformation of the interior walls and exterior walls of the building, and may result in several syndromes, such as wall cracking, water seepage, surface peeling, etc., and even shorten the life span of the building. At present, the number of years of exterior wall insulation materials can be used, and even manufacturers are not even aware of the bottom, so most of the manufacturers in the durability of a product, most are not written on the warranty period.

It is understood that the current warranty period for external insulation materials for external walls is usually 2 years, this time period is obviously too short. According to the provisions of the existing regulations for the quality of new residential buildings, there will be cracking and leakage of external walls within five years. The developer is responsible for the warranty. However, even if the external wall thermal insulation material is extended to 5 years, some material suppliers and developers will not be there after 5 years. Who will pay for updates? The current maintenance of the external wall facade, except for the veneer brick, is Applying a layer of paint after repairing is not costly. However, if external insulation materials need to be renewed in the future, especially for dozens of floors, not only scaffolding, but also old repairs and repairs will be necessary. This is a very expensive operation. If the owner’s maintenance funds are used, even if the owner passes岂 岂 岂 掏 掏 掏 岂 岂 , , , , , , 何时 何时 何时 何时 何时 何时 何时 何时 何时 根据 根据 根据 根据 根据 从 从 从 从 从 从 从 从 从 从 1958 1958 从 从 从 从 从%! China’s construction investment has grown rapidly in recent years. According to calculations, the renminbi. If it is still the previous rate of error, in the future, China will lose an average of 5 trillion yuan in construction investment each year, and the average loss will be 3,800 yuan. In 2006, the per capita net income of rural residents in China was only 3,255 yuan.

There is an urgent need for a large number of engineering management personnel in the field of engineering management, and engineering management must be deeply involved in the national economy.

At present, China's engineering management is backward, and the efficiency of fixed asset investment is not high. In 2000, the scale of investment in fixed assets in China was 3.26 trillion yuan, an increase of 1.09 billion yuan in 2006, an increase of 3.36 times in six years. The ratio of investment in fixed assets to gross domestic product is more than 50%, and the scale of its investment is the largest in the world. But in this "world's best"

Behind this is the astonishing problem of inefficiency and waste in the implementation of our engineering projects. According to data released by the National Bureau of Statistics, Liu Renhuai, an academician of the Chinese Academy of Engineering, produced a graph of the fixed assets formed by China's fixed asset investment. The conclusion is that the proportion of fixed assets formed by China's fixed asset investment is not high, and it is gradually declining. Tens of thousands of large and small projects have been built in China, and tens of thousands of large and small projects are still under construction. Although China has built some world-renowned projects and improved its overall national strength, overall, the efficiency of China's fixed asset investment is not high, and the current status of the overall project management must be changed.

There are reasons for the backwardness of China's engineering management. Since the founding of New China, major projects in China have generally adopted a number of people from the relevant departments to form a project headquarters for management. “At the beginning of the establishment of the headquarters, due to the lack of engineering management experience, many detours were made; at the end of the project, some people had just accumulated experience, the headquarters was disbanded, and the experience was not passed down. When the other project was started, After reopening the reform and opening up, this situation has changed slightly, but due to the large scale of investment in our country and the large number of projects, the overall level of project management is still very low.” Zhang Shoulin, Academician of the Chinese Academy of Engineering, special It is pointed out that in the setting of disciplines, both management science and engineering management are primary disciplines. But for a long time, engineering management is not even a secondary discipline. Project management is essentially an interdisciplinary discipline involving natural sciences, engineering technology, management sciences, and ecological sciences. At this point, social awareness is insufficient.

Compared with general management, project management is systematic, comprehensive and complex. It emphasizes feasibility analysis of engineering, evaluation of engineering value, and various decision-making behaviors in engineering.

At present, the efficiency of China's fixed asset investment is low, and it does not attach importance to project management. In order to change the status quo, in the future, in the catalogue of subjects, specialty, and subjects of general colleges and universities in our country, it is necessary to set the project management as a first-level discipline and promote the training of engineering management professionals; actively promote the professionalism of engineering management and practice certification, and set up The enrollment of the in-service personnel's master's degree in engineering management will be carried out as soon as possible in the schools with better conditions; the nationwide project management forum will continue to be held, and the nationwide first-level society “China Management Society” will be organized.

Excerpt from "Science and Technology Daily"

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